CN113027623A - Mixed vehicle nitrogen oxide sensor dew point release method and related device - Google Patents
Mixed vehicle nitrogen oxide sensor dew point release method and related device Download PDFInfo
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- CN113027623A CN113027623A CN202110127587.2A CN202110127587A CN113027623A CN 113027623 A CN113027623 A CN 113027623A CN 202110127587 A CN202110127587 A CN 202110127587A CN 113027623 A CN113027623 A CN 113027623A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/3005—Details not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content
- G01N25/66—Investigating or analyzing materials by the use of thermal means by investigating moisture content by investigating dew-point
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- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The embodiment of the application provides a mixed vehicle nitrogen oxide sensor dew point release method which is used for improving the accuracy of oxide concentration data. The method in the embodiment of the application comprises the following steps: the engine controller judges whether the nitrogen oxide sensor is in a dew point state; if so, the engine controller judges whether the engine stops running; if yes, the engine controller starts a timer to carry out time delay timing; after the time delay timing is finished, the engine controller secondarily judges whether the engine stops running; if so, the engine controller controls the nitrogen oxide sensor to exit a dew point state; if not, the engine controller controls the nitrogen oxide sensor to keep a dew point state.
Description
Technical Field
The embodiment of the application relates to the field of engines, in particular to a method and a related device for releasing a dew point of a nitrogen oxide sensor of a hybrid vehicle.
Background
The concept of sustainable development is more and more keenly under the current, in order to protect the environment and protect the existing petroleum resources, hybrid diesel engine vehicles have been developed in the energy power technology of vehicles to protect the environment, the engine of the diesel engine vehicle inevitably generates nitrogen oxides in the running state, and the excessive emission of the nitrogen oxides can directly cause air pollution, thereby reducing the quality of the environment.
In the prior art, the diesel engine catalyzes nitrogen oxide through the aftertreatment system to reduce the pollution of the exhaust gas of the diesel engine to the air, the aftertreatment system of the diesel engine can increase the oil consumption when in operation, the catalytic rate of nitrogen oxide is improved through the temperature of the aftertreatment system, and the catalytic rate of nitrogen oxide can observe the content of nitrogen oxide in the exhaust gas before and after aftertreatment through arranging nitrogen oxide sensors at an air inlet and an air outlet of the aftertreatment system of the diesel engine.
The nitrogen oxide sensor enters a dew point state under two conditions, namely firstly, starting an engine, and secondly, enabling the exhaust temperature of an aftertreatment system to be greater than a limit value, wherein the limit value can be calibrated. However, in a hybrid vehicle, the diesel engine stops operating when the vehicle is driven by a motor, and therefore the engine is frequently started and stopped in the hybrid vehicle. Thereby causing the nox sensor to be inactive most of the time and reducing the accuracy of the nox concentration data.
Disclosure of Invention
The embodiment of the application provides a mixed vehicle nitrogen oxide sensor dew point release method which is used for improving the accuracy of oxide concentration data.
The application provides a method for releasing a dew point of a nitrogen oxide sensor of a hybrid vehicle, which comprises the following steps:
the engine controller judges whether the nitrogen oxide sensor is in a dew point state;
if so, the engine controller judges whether the engine stops running;
if yes, the engine controller starts a timer to carry out time delay timing;
after the time delay timing is finished, the engine controller secondarily judges whether the engine stops running;
if so, the engine controller controls the nitrogen oxide sensor to exit a dew point state;
if not, the engine controller controls the nitrogen oxide sensor to keep a dew point state.
Optionally, before the engine controller determines whether the nox sensor is in the dew point state, the method further includes:
the engine controller acquires an operating state of an engine.
Optionally, the determining, by the engine controller, whether the engine stops operating includes:
and the engine controller judges whether the engine stops running or not according to the running state.
Optionally, after the engine controller determines whether the engine stops operating according to the operating state, the method further includes:
if not, the engine control continuously acquires the running state of the engine until the engine stops running.
Optionally, the determining, by the engine controller, whether the nox sensor is in the dew point state includes:
an engine controller acquires the working state of the nitrogen oxide sensor;
and the engine controller judges whether the nitrogen oxide sensor is in a dew point state or not according to the working state.
A second aspect of the present application provides an engine controller comprising:
the first judgment unit is used for judging whether the nitrogen oxide sensor is in a dew point state or not;
the second judgment unit is used for judging whether the engine stops running or not when the judgment result of the first judgment unit is yes;
the time delay unit is used for starting a timer to carry out time delay and timing when the judgment result of the second judgment unit is yes;
the third judging unit is used for judging whether the engine stops running for the second time after the time delay timing is finished;
the first control unit is used for controlling the nitrogen oxide sensor to exit from a dew point state when the judgment result of the third judgment unit is yes;
and the second control unit is used for controlling the nitrogen oxide sensor to keep the dew point state when the judgment result of the third judgment unit is negative.
Optionally, the engine controller further comprises:
and the acquisition unit is used for acquiring the running state of the engine by the engine controller.
Optionally, the second judging unit is further configured to judge whether the engine stops operating according to the operating state.
Optionally, the engine controller further comprises:
and the monitoring unit is used for continuously acquiring the running state of the engine until the engine stops running when the judgment result of the second judgment unit is negative.
Optionally, the first determining unit includes:
the acquisition module is used for acquiring the working state of the nitrogen oxide sensor;
and the judging module is used for judging whether the nitrogen oxide sensor is in a dew point state according to the working state.
A third aspect of the embodiments of the present application provides an engine controller including:
the device comprises a processor, a memory, an input and output unit and a bus;
the processor is connected with the memory, the input and output unit and the bus;
the processor specifically performs the following operations:
judging whether the nitrogen oxide sensor is in a dew point state or not;
if so, judging whether the engine stops running or not;
if yes, starting a timer to carry out time delay timing;
after the time delay timing is finished, judging whether the engine stops running for the second time;
if so, controlling the nitrogen oxide sensor to exit a dew point state;
and if not, controlling the nitrogen oxide sensor to keep a dew point state.
According to the technical scheme, on the basis of the original condition, the condition of delay time of the engine state is increased, namely the nitrogen oxide sensor dew point can quit after the engine is stopped for a period of time, and the arrangement can avoid the situation that the engine is frequently started and stopped and the nitrogen oxide sensor frequently quits the dew point state, so that the accuracy of the nitrogen oxide concentration data is improved.
Drawings
FIG. 1 is a schematic flow chart illustrating an embodiment of a method for dew point release of a nitrogen oxide sensor of a hybrid vehicle according to an embodiment of the present disclosure;
FIG. 2 is a schematic flow chart illustrating another embodiment of a method for releasing a dew point of a nitrogen oxide sensor of a hybrid vehicle according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of an embodiment of an engine controller according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of another embodiment of an engine controller according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of another embodiment of an engine controller according to an embodiment of the present disclosure.
Detailed Description
The embodiment of the application provides a mixed vehicle nitrogen oxide sensor dew point release method which is used for improving the accuracy of oxide concentration data.
In the following, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to FIG. 1, the present application is directed to an embodiment of a hybrid vehicle NOx sensor dew point release method, comprising:
101. the engine controller judges whether the nitrogen oxide sensor is in a dew point state;
in practical situations, the diesel engine nitrogen oxide sensor dew point maintaining conditions include an engine running state, an exhaust temperature, an engine rotating speed and the like, but the engine of the hybrid vehicle has two energy supply modules of the engine and the motor, so that the engine can frequently switch between a starting state and a stopping state, and the nitrogen oxide sensor can frequently exit from the dew point state.
When the NOx sensor is in the dew point state, step 102 is performed.
102. The engine controller judges whether the engine stops running or not;
after the engine controller determines that the contact of the nitrogen oxide sensor is in a dew point state, the engine controller can judge whether the engine is in a stop state at the moment, the stop state indicates that the engine stops running at the moment, the energy supply mode of the engine is different from that of the motor, in an actual situation, the engine needs to supply fuel oil and air into a cylinder for ignition and combustion after supplying energy to the vehicle, the fuel oil can be converted into heat energy and kinetic energy after combustion, meanwhile, waste gas containing the nitrogen oxide can be generated, in a disc situation, if the engine stops, the nitrogen oxide is not generated, and if the engine is in the stop state, step 103 is executed.
103. The engine controller starts a timer to carry out time delay timing;
when the engine is in a stopped state, there is a possibility that the onboard vehicle of the engine is running by the motor as driving power rather than the vehicle is stopped.
In this case, the engine may be restarted when the operating condition of the motor fails to meet the energy supply requirement due to the speed increase of the vehicle running by using the motor. In order to prevent the contact of the nitrogen oxide sensor from exiting the dew point mode and then restarting the engine to recover the dew point, the engine controller delays before exiting the contact of the nitrogen oxide sensor, and the delay time can be set.
104. After the time delay timing is finished, the engine controller secondarily judges whether the engine stops running;
after the delay time is counted, the engine controller will judge whether the engine stops running again, at this time, the engine already meets the delay time, after the engine controller judges the running state of the engine, the engine controller will control the contact of the nitrogen oxide sensor directly according to the running state of the engine, if the engine stops running, step 105 is executed, if the engine is still running, step 106 is executed.
105. The engine controller controls the nitrogen oxide sensor to exit a dew point state;
when the engine controller determines that the engine is in a state of stopping operation, the engine controller controls the contact of the nitrogen oxide sensor to exit a dew point state, after the nitrogen oxide sensor exits the dew point state, the engine controller resets an algorithm for delaying the nitrogen oxide sensor to exit the dew point so as to enable the next occurrence of the nitrogen oxide sensor dew point, and when the engine is in the state of stopping operation, the engine controller can start judgment from the first step.
106. The engine controller controls the NOx sensor to maintain a dew point condition.
When the engine controller determines that the engine is in a running state, the engine provides energy for the vehicle at the moment and generates exhaust gas containing nitrogen oxides, and the engine controller maintains the dew point state of the nitrogen oxide sensor at the moment so as to ensure monitoring of the emission of the nitrogen oxides.
In the embodiment of the application, compared with the past scheme, the engine controller cancels the limit value of the engine speed condition and increases the condition of the delay time of the engine state so as to reduce the condition that the contact of the nitrogen oxide sensor frequently exits the dew point state because the engine is frequently started and stopped, thereby improving the detection precision.
Referring to FIG. 2, the present application is directed to another embodiment of a method for dew point release for a NOx sensor of a hybrid vehicle, comprising:
201. the engine controller acquires an operating state of an engine.
Specifically, the engine controller obtains the real-time running state of the engine, when the engine runs, the engine inevitably generates exhaust gas with nitrogen oxides and other pollutants during the running process because of the energy conversion mode,
202. an engine controller acquires the working state of the nitrogen oxide sensor;
the working state of the nitrogen oxide sensor is only two modes, namely a dew point mode and a non-dew point mode, when the nitrogen oxide sensor is in the dew point mode, the nitrogen oxide sensor can acquire nitrogen oxide data generated in the running process of an engine and a modifier after the nitrogen oxide data passes through an aftertreatment system in real time, and under a general condition, the nitrogen oxide sensor is in the non-dew point state and needs to meet the requirements of the running state of the engine, the exhaust temperature of the engine, the rotating speed of the engine to be smaller than a limit value and the like at the same time, and the requirements are all used for determining that a vehicle assembled with the engine stops.
However, in the hybrid vehicle, the state of the engine stopping operation cannot be used to determine that the vehicle stops running, and may also include that the vehicle runs by using the motor power supply, and at this time, the engine may wake up the engine again for power supply due to the fact that the motor power supply cannot reach the driving speed. In this case, the engine controller is frequently started and stopped in a short time, and if the operating state of the nitrogen oxide sensor is frequently changed in accordance with the general situation, the life of the contact of the nitrogen oxide sensor is reduced, and the accuracy of detecting nitrogen oxide is reduced.
203. And the engine controller judges whether the nitrogen oxide sensor is in a dew point state or not according to the working state.
After the engine controller obtains the operating state of the nox sensor, the engine controller determines whether the contact of the nox sensor is in the dew point state according to the operating state, and if so, executes step 204.
204. The engine controller judges whether the engine stops running or not according to the running state;
since the operation state of the engine is obtained in step 201, the engine controller may directly determine whether the engine stops operating according to the obtained operation state of the engine, execute step 206 when the engine stops operating, and execute step 205 when the engine is still operating.
205. The engine control continues to acquire the operating state of the engine until the engine stops operating.
When the nitrogen oxide sensor is in a dew point state but the engine is in a running state at the same time, the engine is in a normal working mode at the moment, and the engine controller controls the running of the engine in the normal mode until the running mode of the engine is changed to stop.
206. The engine controller starts a timer to carry out time delay timing;
207. after the time delay timing is finished, the engine controller secondarily judges whether the engine stops running;
208. the engine controller controls the nitrogen oxide sensor to exit a dew point state;
209. the engine controller controls the NOx sensor to maintain a dew point condition.
Referring to fig. 3, an embodiment of the present application provides an embodiment of an engine controller, including:
a first judgment unit 301, configured to judge whether the nox sensor is in a dew point state;
a second judging unit 302, configured to judge whether the engine stops operating when the first judging unit judges that the engine stops operating;
a delay unit 303, configured to start a timer to perform delay timing when the determination result of the second determining unit is yes;
a third determining unit 304, configured to determine whether the engine stops operating for the second time after the time delay timing is ended;
a first control unit 305 for controlling the nox sensor to exit the dew point state when the determination result of the third determination unit is yes;
and a second control unit 306, configured to control the nox sensor to maintain the dew point state when the determination result of the third determining unit is negative.
In this embodiment, the functions of the units correspond to the steps in the embodiment shown in fig. 1, and are not described herein again.
Referring to fig. 4, another embodiment of an engine controller is provided, including:
an obtaining unit 401, configured to obtain an operating state of the engine by the engine controller.
A first judging unit 402, configured to judge whether the nox sensor is in a dew point state;
a second judging unit 403, configured to judge whether the engine stops operating according to the operating state when the first judging unit judges that the engine stops operating;
and the monitoring unit 404 is configured to continuously acquire the operating state of the engine until the engine stops operating when the second determination unit determines that the engine does not operate.
A delay unit 405, configured to start a timer to perform delay timing when the determination result of the second determining unit is yes;
a third determination unit 406, configured to determine whether the engine stops operating for the second time after the time delay timing is ended;
a first control unit 407, configured to control the nox sensor to exit the dew point state when the determination result of the third determination unit is yes;
and a second control unit 408 for controlling the nitrogen oxide sensor to maintain the dew point state when the determination result of the third determination unit is negative.
In this embodiment of the application, the first determining unit 402 includes:
an obtaining module 4021, configured to obtain an operating state of the nitrogen oxide sensor;
a judging module 4022, configured to judge whether the nox sensor is in a dew point state according to the operating state.
In this embodiment, the functions of the units correspond to the steps in the embodiment shown in fig. 2, and are not described herein again.
Referring to fig. 5, another embodiment of an engine controller is provided, including:
a processor 501, a memory 502, an input/output unit 503, and a bus 504;
the processor 501 is connected to the memory 502, the input/output unit 503, and the bus 504;
the processor 501 specifically executes operations corresponding to the method steps in fig. 1 to fig. 2.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like.
Claims (10)
1. A method of hybrid vehicle nox sensor dew point release, comprising:
the engine controller judges whether the nitrogen oxide sensor is in a dew point state;
if so, the engine controller judges whether the engine stops running;
if yes, the engine controller starts a timer to carry out time delay timing;
after the time delay timing is finished, the engine controller secondarily judges whether the engine stops running;
if so, the engine controller controls the nitrogen oxide sensor to exit a dew point state;
if not, the engine controller controls the nitrogen oxide sensor to keep a dew point state.
2. The method of claim 1, wherein before the engine controller determines whether the nox sensor is in a dew point state, the method further comprises:
the engine controller acquires an operating state of an engine.
3. The method of claim 2, wherein the engine controller determining whether the engine is off comprises:
and the engine controller judges whether the engine stops running or not according to the running state.
4. The method according to any one of claims 1 to 3, characterized in that after the engine controller determines whether the engine stops operating according to the operating state, the method further comprises:
if not, the engine control continuously acquires the running state of the engine until the engine stops running.
5. The method of any of claims 1-3, wherein the engine controller determining whether a NOx sensor is in a dew point state comprises:
an engine controller acquires the working state of the nitrogen oxide sensor;
and the engine controller judges whether the nitrogen oxide sensor is in a dew point state or not according to the working state.
6. An engine controller, comprising:
the first judgment unit is used for judging whether the nitrogen oxide sensor is in a dew point state or not;
the second judgment unit is used for judging whether the engine stops running or not when the judgment result of the first judgment unit is yes;
the time delay unit is used for starting a timer to carry out time delay and timing when the judgment result of the second judgment unit is yes;
the third judging unit is used for judging whether the engine stops running for the second time after the time delay timing is finished;
the first control unit is used for controlling the nitrogen oxide sensor to exit from a dew point state when the judgment result of the third judgment unit is yes;
and the second control unit is used for controlling the nitrogen oxide sensor to keep the dew point state when the judgment result of the third judgment unit is negative.
7. The engine controller of claim 6, further comprising:
and the acquisition unit is used for acquiring the running state of the engine by the engine controller.
8. The engine controller according to claim 7, characterized in that the second determination unit is further configured to determine whether the engine stops operating, based on the operating state.
9. The engine controller according to any one of claims 6 to 8, characterized by further comprising:
and the monitoring unit is used for continuously acquiring the running state of the engine until the engine stops running when the judgment result of the second judgment unit is negative.
10. The engine controller according to any one of claims 6 to 8, characterized in that the first determination unit includes:
the acquisition module is used for acquiring the working state of the nitrogen oxide sensor;
and the judging module is used for judging whether the nitrogen oxide sensor is in a dew point state according to the working state.
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| CN202110127587.2A CN113027623A (en) | 2021-01-29 | 2021-01-29 | Mixed vehicle nitrogen oxide sensor dew point release method and related device |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052794A (en) * | 2004-10-30 | 2007-10-10 | 大众汽车有限公司 | Method for controlling automobile waste capable of heating sensor running |
| EP2236799A2 (en) * | 2009-04-02 | 2010-10-06 | NGK Spark Plug Co., Ltd. | Energization control apparatus for controlled component for a vehicle |
| DE102012205017A1 (en) * | 2011-04-28 | 2012-10-31 | Robert Bosch Gmbh | Method for operating internal combustion engine, involves detecting trigger event to activate heating element before activating internal combustion engine, where heating element is activated for heating ceramic sensor element |
| DE102011086148A1 (en) * | 2011-11-11 | 2013-05-16 | Robert Bosch Gmbh | Method for operating resistive sensor in exhaust duct of internal combustion engine e.g. petrol engine, involves determining dew point end in exhaust duct from measured change in conductivity of resistive sensor |
| JP2014020219A (en) * | 2012-07-12 | 2014-02-03 | Toyota Motor Corp | Heater control device of sensor with heater |
| GB201514786D0 (en) * | 2015-08-20 | 2015-10-07 | Ford Global Tech Llc | A method of reducing nox emissions from an engine |
| US20170002708A1 (en) * | 2015-06-30 | 2017-01-05 | Hyundai Motor Company | Apparatus and method for controlling nitrogen oxide sensor of hybrid vehicle |
| CN110005511A (en) * | 2018-01-04 | 2019-07-12 | 福特全球技术公司 | NOx shift diagnostic between engine soak period |
| CN112031942A (en) * | 2020-09-01 | 2020-12-04 | 潍柴动力股份有限公司 | Thermal protection control method and device |
| CN112061108A (en) * | 2019-05-21 | 2020-12-11 | 丰田自动车株式会社 | Control device for hybrid vehicle |
-
2021
- 2021-01-29 CN CN202110127587.2A patent/CN113027623A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052794A (en) * | 2004-10-30 | 2007-10-10 | 大众汽车有限公司 | Method for controlling automobile waste capable of heating sensor running |
| EP2236799A2 (en) * | 2009-04-02 | 2010-10-06 | NGK Spark Plug Co., Ltd. | Energization control apparatus for controlled component for a vehicle |
| DE102012205017A1 (en) * | 2011-04-28 | 2012-10-31 | Robert Bosch Gmbh | Method for operating internal combustion engine, involves detecting trigger event to activate heating element before activating internal combustion engine, where heating element is activated for heating ceramic sensor element |
| DE102011086148A1 (en) * | 2011-11-11 | 2013-05-16 | Robert Bosch Gmbh | Method for operating resistive sensor in exhaust duct of internal combustion engine e.g. petrol engine, involves determining dew point end in exhaust duct from measured change in conductivity of resistive sensor |
| JP2014020219A (en) * | 2012-07-12 | 2014-02-03 | Toyota Motor Corp | Heater control device of sensor with heater |
| US20170002708A1 (en) * | 2015-06-30 | 2017-01-05 | Hyundai Motor Company | Apparatus and method for controlling nitrogen oxide sensor of hybrid vehicle |
| GB201514786D0 (en) * | 2015-08-20 | 2015-10-07 | Ford Global Tech Llc | A method of reducing nox emissions from an engine |
| CN110005511A (en) * | 2018-01-04 | 2019-07-12 | 福特全球技术公司 | NOx shift diagnostic between engine soak period |
| CN112061108A (en) * | 2019-05-21 | 2020-12-11 | 丰田自动车株式会社 | Control device for hybrid vehicle |
| CN112031942A (en) * | 2020-09-01 | 2020-12-04 | 潍柴动力股份有限公司 | Thermal protection control method and device |
Non-Patent Citations (1)
| Title |
|---|
| 尚明利等: "基于排气温度优化的混合动力发动机起停控制算法", 《客车技术与研究》, no. 06, 25 December 2015 (2015-12-25), pages 6 - 8 * |
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Application publication date: 20210625 |